Probably not, and that is exactly what they’re counting on.
CO (carbon monoxide – lighter than air) is formed as a result of oxygen-poor combustion (as in combustion engines,) it is used as a coloring agent in US meat production (illegal in EU and Japan,) and has potential in the medical field as a biological regulator. It is widely used in chemical manufacturing. It may even be used, one day, as a fuel source on Mars. CO is toxic to humans in very low concentrations (35ppm.) Atmospheric concentrations are approximately 0.1ppm.
CO2 (carbon dioxide – heavier than air) “is a colorless, odorless gas vital to life on Earth.” Plants use it to photosynthesize sugars from CO2 and water (with oxygen produced as a byproduct.) CO2 is produced by the respiration of animals and fish, organic decay, fermentation, and combustion of wood and fossil fuels. It is used throughout many industries for decaffeinating coffee, adding sparkle to carbonated beverages (soda, beer, champagne) and when frozen becomes ‘dry ice’. CO2 is only toxic in extremely high concentrations (>70,000ppm.) Atmospheric concentrations are between 360 – 410ppm depending on location.
The above article contradicts itself in several places and also claims that CO2 is directly responsible for ‘global warming’, but more on that later.
In a sentence, CO is poison and CO2 is plant food necessary for all life on Earth. Both are so-called greenhouse gases (GHG.) CO2 is truly a greenhouse gas in the sense that farmers enrich their greenhouse environments with it in order to stimulate plant growth and increase yield.
Without CO2, breads wouldn’t rise, sparkling wine wouldn’t sparkle, beer would be flat, and compressed-air tools (not actually air, but CO2) would cost a lot more to run. Oh and by the way, all green plants (on land and in the seas) would die causing mass starvation for herbivores and humans alike.